A good few years ago now I was seeing a girl, Zoe. We were about the same age, around nineteen or twenty, but she was a lot more worldly wise that I, and was quite...let's say adventurous...when it came to places in which to share some intimate coupling. The bed, sofa, kitchen table were all very good, but she had an itch that could be only scratched by doing it in more public areas. Not in public, while being watched by others, but in places where there were other people around, with maybe just a small chance of being discovered.
I first found out about this whilst we were taking a journey on a local bus one day. We hadn't been seeing each other for long, and were sitting on the back seat kissing and messing around. There were maybe half a dozen other people on the bus, with one guy sitting in the seat just in front of us.
During our frolicking I gently cupped one of Zoe's boobs, fully expecting her to be a little shocked and to slap my hand away, but on the contrary, she made no move except to look me in the eye for a couple of seconds before moving in to kiss me deeply on the lips, slipping her tongue into my mouth. Naturally I increased the pressure on her breast and found her nipple through her thin cotton top (she wasn't a particularly well endowed girl, but had beautiful small pert tits, so no bra was impeding my groping) as her breathing became heavier. Her hand moved down to feel my burgeoning hard on swelling in my jeans, at which stage I became a little nervous and, continuing our passionate kissing, cast a look through one eye down the bus.
The other passengers were absorbed in their own little worlds, reading the paper, staring out of the window etc. so I emboldened myself to go a little further. She was wearing one of those ankle length cotton "hippie" dresses, so I began to gather up the material until I was able to glide a hand up the inside of her smooth thighs. She parted her legs as my hand went higher until my fingertips were brushing against her panties, feeling the dampness of her excitement as I began stroking her pussy through the thin material. In the meantime she had slipped her fingers down the waist band of my jeans and was stroking the head of my now rock hard cock with her fingertips.
Zoe broke off from our kiss, and I thought that we had gone too far, but she moved her mouth close to my ear and whispered, "I'm so turned on, I want your cock in me now..."
Well I was speechless for a couple of seconds, in fact just long enough for her to manoeuvre herself so she was sitting on my lap, and after a few more seconds of fumbling she had unbuttoned my jeans and I felt my throbbing erection pressing against the naked flesh of her thigh. I glanced down the bus again but no one was aware of what we were up to, and even if they did face our way there was enough skirt material covering what we were really up to not to arouse suspicion.
She reached under her skirt, and I realised when I felt the head of my cock pressing against her pussy lips that she had moved her panties aside. With a wriggle of her hips and a little guidance from my left hand I felt myself slide into her, my full length easily filling her as she was so wet. She let out a soft whimper, and I cast a nervous glance down the bus again as it came to a halt to let a couple of passengers off. All seemed clear, when a man, in his mid forties I suppose, climbed the steps, paid his fare and made his way down the bus. We sat stock still as he approached and, nodding politely to me, sat down at the opposite end of the back seat.
